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Recent research suggests that socio-ecological factors such as dietary specialization and social complexity may be drivers of advanced cognitive skills among primates. Therefore, we assessed the ability of 12 black-handed spider monkeys (Ateles geoffroyi), a highly frugivorous platyrrhine primate with strong fission-fusion dynamics, to succeed in a serial visual reversal learning task. Using a two-alternative choice paradigm we first trained the animals to reliably choose a rewarded visual stimulus over a non-rewarded one. Upon reaching a pre-set learning criterion we then switched the reward values of the two stimuli and assessed if and how quickly the animals learned to reverse their choices, again to a pre-set learning criterion. This stimulus reversal procedure was then continued for a total of 80 sessions of 10 trials each. We found that the spider monkeys quickly learned to reliably discriminate between two simultaneously presented visual stimuli, that they succeeded in a visual reversal learning task, and that they displayed an increase in learning speed across consecutive reversals, suggesting that they are capable of serial reversal learning-set formation with visual cues. The fastest-learning individual completed five reversals within the 80 sessions. The spider monkeys outperformed most other primate and nonprimate mammal species tested so far on this type of cognitive task, including chimpanzees, with regard to their learning speed in both the initial learning task and in the first reversal task, suggesting a high degree of behavioral flexibility and inhibitory control. Our findings support the notion that socio-ecological factors such as dietary specialization and social complexity foster advanced cognitive skills in primates.
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Reversão de Aprendizagem , Animais , Masculino , Feminino , Ateles geoffroyi , Percepção Visual , Recompensa , Aprendizagem Seriada , Atelinae/fisiologiaRESUMO
OBJECTIVE: To assess the correlation of dead space fraction (VD/VT) measured through time capnography, corrected minute volume (CMV) and ventilation ratio (VR) with clinical outcomes in COVID-19 patients requiring invasive mechanical ventilation. DESIGN: Observational study of a historical cohort. SETTING: University hospital in Medellin, Colombia. PARTICIPANTS: Patients aged 15 and above with a confirmed COVID-19 diagnosis admitted to the ICU and requiring mechanical ventilation. INTERVENTIONS: Measurement of VD/VT, CMV, and VR in COVID-19 patients. MAIN VARIABLES OF INTEREST: VD/VT, CMV, VR, demographic data, oxygenation indices and ventilatory parameters. RESULTS: During the study period, 1047 COVID-19 patients on mechanical ventilation were analyzed, of whom 446 (42%) died. Deceased patients exhibited a higher prevalence of advanced age and obesity, elevated Charlson index, higher APACHE II and SOFA scores, as well as an increase in VD/VT ratio (0.27 in survivors and 0.31 in deceased) and minute ventilation volume on the first day of mechanical ventilation. The multivariate analysis revealed independent associations to in-hospital mortality, higher VD/VT (HR 1.24; 95%CI 1.003-1.525; p = 0.046), age (HR 1.024; 95%CI 1.014-1.034; p < 0.001), and SOFA score at onset (HR: 1.036; 95%CI: 1.001-1.07; p = 0.017). CONCLUSIONS: VD/VT demonstrated an association with mortality in COVID-19 patients with ARDS on mechanical ventilation. These findings suggest that VD/VT measurement may serve as a severity marker for the disease.
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OBJECTIVE: To evaluate medium-term self-reported respiratory and gastrointestinal (GI) outcomes in children with congenital diaphragmatic hernia (CDH). DESIGN: Self-reported respiratory and GI outcomes correlated with prenatal severity indicators. SETTING: Prospective study at three fetal medicine units. POPULATION: Families of children prenatally diagnosed with isolated, left-sided CDH surviving for >1 year. METHODS: Families received validated questionnaires for GI outcomes (Infant Gastroesophageal Reflux Questionnaire Revised, I-GERQ-R, for infants aged <2 years, or Paediatric Gastro-oesophageal Symptom and Quality of Life Questionnaire, PGSQ, for children aged aged 2-8 years or >9 years) and respiratory outcomes (preschool respiratory outcome questionnaire, for children aged ≤5 years, or the International Study of Asthma and Allergies in Childhood asthma questionnaire, for children aged 6-8 years or ≥9 years). Prenatal data collected from the medical records included lung size (percentage observed/expected lung-to-head ratio, O/E LHR %), liver position, fetal endoluminal tracheal occlusion (FETO) gestational age (GA) at delivery, and perinatal data included birthweight, location, patch repair and respiratory support. MAIN OUTCOME MEASURES: The GI and respiratory scores were correlated with O/E LHR using linear and logistic regression models. Univariate analysis was used to evaluate associations with perinatal variables. RESULTS: We obtained 142 responses from 342 families (representing a response rate of 45%). The baseline characteristics of participants and non-participants were comparable. No correlations between perinatal variables and respiratory or GI scores were identified. Children aged ≤5 years with lower O/E LHR values reported higher respiratory scores (P = 0.0175); this finding was not reported in older children. Overall, the children who underwent FETO (n = 51) had GI (P = 0.290) and respiratory (P = 0.052) scores that were comparable with those of children who were expectantly managed. CONCLUSIONS: Families and children with prenatally diagnosed CDH reported fewer respiratory symptoms with increasing age. There was no correlation between O/E LHR or the use of FETO and self-reported outcomes.
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College-age students are disproportionately impacted by sexually transmitted infections. Campus programs that reduce sexual violence have received recent investment, are increasingly common, and may offer a platform to increase condom use, but this has not yet been investigated. We explore this novel question through a secondary analysis of a randomized control trial of RealConsent, a web-based, sexual assault program for college women, on three college campuses. By estimating single and multiple-mediator models we examine the relationships between study assignment, the hypothesized mediators: self-efficacy to discuss safer sex, and clarity and assertiveness in sexual communication, and consistent condom use at follow-up. In the single mediator models, self-efficacy for safer sex communication (aOR: 1.11, 95% CI: 1.03-1.19, p = .004), assertiveness in sexual communication (aOR: 1.06, 95% CI: 1.02-1.11, p =.004), and clarity in sexual communication (aOR: 1.03, 95% CI: 1.00-1.05, p = .026) demonstrated significant direct effects on condom use. No statistically significant relationships between RealConsent and the mediators, nor indirect effects were found. In the multimediator model, there were no statistically significant associations identified. Self-efficacy, assertiveness, and clarity in communication about sex may have a positive impact on condom use but we did not find evidence that RealConsent impacted these mediators and thus no mediated effect was identified. Additional research is needed to develop and assess college-based sexual violence prevention programs that include an additional focus on skills specifically related to condom negotiation and use to understand if these widespread programs offer an efficient and effective platform to reduce the impact of sexually transmitted infections (STIs) among this high-risk population.
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Preservativos , Análise de Mediação , Sexo Seguro , Autoeficácia , Delitos Sexuais , Estudantes , Humanos , Preservativos/estatística & dados numéricos , Feminino , Universidades , Estudantes/psicologia , Adulto Jovem , Delitos Sexuais/prevenção & controle , Infecções Sexualmente Transmissíveis/prevenção & controle , AdolescenteRESUMO
Studies of food preferences in captive primates have so far mainly been restricted to frugivorous species. It was therefore the aim of the present study to assess the occurrence of spontaneous food preferences in a mainly folivorous primate, the captive Southern brown howler monkey, and to analyze whether these preferences correlate with nutrient composition. Using a two-alternative choice test, we presented ten male and five female adult Alouatta guariba clamitans with all possible binary combinations of ten types of food that are part of their diet in captivity and recorded their choice behavior. We found the howler monkeys to display the following rank order of preference: banana > mango > watermelon > papaya > beetroot > apple > pear > orange > cucumber > tomato. This preference ranking significantly and positively correlated with the total carbohydrate content and with the sucrose content of the food items. We also found significant positive correlations between the food preference ranking and the content of the minerals copper and magnesium. Male and female howler monkeys did not differ significantly in their food preference rankings. These results suggest this howler monkeys under human care are not opportunistic, but selective feeders with regard to maximizing their net gain of energy as only the content of carbohydrates, but not the contents of total energy, proteins, or lipids significantly correlated with the displayed food preferences. Thus, the food preferences of this primate are similar to those reported in several species of frugivorous primates tested with cultivated fruits and vegetables.
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Alouatta , Preferências Alimentares , Humanos , Animais , Feminino , Masculino , Haplorrinos , NutrientesRESUMO
La intoxicación por 3,4-metilendioximetanfetamina (MDMA), ha tenido un dramático resurgimiento desde 1980, se ha extendido por gran parte de los Estados Unidos, Europa y América, ha sido ampliamente utilizada como drogas con fines recreativos, actualmente Las catinonas sintéticas se venden como "euforizantes legales" para eludir las leyes existentes, lo que resulta en toxicidad grave y muertes. Presentamos un caso clínico de un adulto joven, quien debuto con intoxicación aguda severa MDMA, con falla multiorgánica, el cual se realizó atención y manejo agudo de la intoxicación en el servicio de urgencias, con posterior manejo de complicaciones en la unidad de cuidados intensivo y finalmente con sobrevida a pesar del mal pronóstico.
3,4-methylenedioxymethamphetamine (MDMA) intoxication, has had a dramatic resurgence since 1980, has spread throughout much of the United States, Europe and America, has been widely used as a recreational drug, currently Synthetic cathinones are they sell as "legal highs" to circumvent existing laws, resulting in severe toxicity and deaths. We present a clinical case of a young adult, who debuted with severe acute MDMA poisoning, with multiple organ failure, who underwent care and acute management of the poisoning in the emergency department, with subsequent management of complications in the intensive care unit and finally with survival despite the poor prognosis.
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This paper focuses on the development and feasibility of a digitally-based educational intervention, titled Recognize & Resist (R&R), for writers of One Direction (1D) fanfiction on Wattpad.com. The goal of R&R is to reduce the prevalence of social norms that are supportive of sexual violence within 1D fanfiction. 1D fanfictions, or fictional romance stories written by fans of this British boy band, have hundreds of millions of views on Wattpad.com. Formative research has found that social norms supportive of sexual violence are prevalent in 1D fanfictions and that some authors have internalized these norms. R&R aims to motivate 1D fanfiction writers to highlight sexual consent and egalitarian gender roles in their writing. To evaluate the intervention's feasibility, 15 1D fanfiction authors completed a survey and participated in an interview or focus group. Results demonstrate R&R's feasibility, with high ratings of its acceptability and demand. Insights from the interviews and focus groups provide suggestions for revising R&R before rigorously evaluating its efficacy. Additionally, results demonstrate the utility of using popular culture as a vehicle for attitude-change regarding sensitive health issues.
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Papel de Gênero , Delitos Sexuais , Humanos , Comportamento Sexual , Normas Sociais , AtitudeRESUMO
Acceptability of a sexual violence (SV) risk reduction program called RealConsent designed for first-year female college students was conducted as part of a larger, randomized controlled trial. RealConsent uses web-based and mobile technology to deliver four 45-minute theoretically and empirically derived modules designed to increase knowledge, affect attitudes and normative beliefs, increase bystander and other protective behaviors, and reduce alcohol misuse. Educational entertainment is used throughout the program to achieve these aims. A total of 444 first-year female college students recruited from three Southeastern universities who were eligible and provided informed consent were randomized to RealConsent. Acceptability was ascertained both quantitatively and qualitatively through a survey administered following the completion of each of four modules. Results suggest that overall, RealConsent was viewed as relatable, realistic, and relevant. Most participants rated modules as good/excellent in quality, in organization, and in the conveying of a high degree of knowledge regarding alcohol misuse, consent for sex, sexual communication, defense strategies, protective strategies, and intervening to prevent SV. Suggestions to improve RealConsent centered on having more content inclusive of sexual and gender-minoritized students. Results suggest that RealConsent is an acceptable SV risk reduction program among first-year female college students and may have advantages for dissemination over in-person programs due to its web-based and mobile technology.
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Alcoolismo , Delitos Sexuais , Humanos , Feminino , Universidades , Delitos Sexuais/prevenção & controle , Comportamento de Redução do Risco , InternetRESUMO
ABSTRACT: Sexual violence (SV) is a serious and long-standing public health problem on college campuses. At institutions of higher education, campus administrators, activists, and practitioners have worked for decades to address campus SV. Despite federally mandated campus SV prevention programming, rates of campus SV remain unchanged. The purpose of this commentary is to outline a strategy for enhancing campus SV prevention efforts using a comprehensive multilevel approach utilizing existing efficacious programs. The following three strategies for implementing optimal campus SV prevention are proposed, which include (a) the need to prioritize efficacy, (b) targeting multiple levels of the social ecology, and (c) leveraging the benefits of in-person programming and technology-driven prevention. A call to action is included for both institutions of higher education administrators and practitioners to implement and invest in comprehensive multilevel interventions using existing, efficacious SV programs, ideally combining a technology-based program with an in-person component. Furthermore, a coordinated effort between prevention and response is needed to achieve successful prevention of campus SV and revictimization, including a connection with the community for postassault interventions. Thus, implementing multilevel interventions on college campuses using existing evidence-based programs in combination with a coordinated community response of postassault interventions can bring the campus community together and is optimal to moving the needle on rates of campus SV.
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Delitos Sexuais , Estudantes , Humanos , Delitos Sexuais/prevenção & controle , Violência/prevenção & controle , Meio Social , UniversidadesRESUMO
BACKGROUND: Sexual violence (SV) is a significant, global public health problem, particularly among young adults. Promising interventions exist, including prosocial bystander intervention programs that train bystanders to intervene in situations at-risk for SV. However, these programs suffer from critical weaknesses: (1) they do not address the proximal effect of alcohol use on bystander decision-making and (2) they rely on self-report measures to evaluate outcomes. To overcome these limitations, we integrate new content specific to alcohol use within the context of prosocial bystander intervention into an existing, evidence-based program, RealConsent1.0. The resulting program, RealConsent2.0, aims to facilitate bystander behavior among sober and intoxicated bystanders and uses a virtual reality (VR) environment to assess bystander behavior in the context of acute alcohol use. METHODS: This protocol paper presents the design of a randomized controlled trial (RCT) in which we evaluate RealConsent2.0 for efficacy in increasing alcohol- and non-alcohol-involved bystander behavior compared to RealConsent1.0 or to an attention-control program ("Taking Charge"). The RCT is being implemented in Atlanta, GA, and Lincoln, NE. Participants will be 605, healthy men aged 21-25 years recruited through social media, community-based flyers, and university email lists. Eligible participants who provide informed consent and complete the baseline survey, which includes self-reported bystander behavior, are then randomized to one of six conditions: RealConsent2.0/alcohol, RealConsent2.0/placebo, RealConsent1.0/alcohol, RealConsent1.0/placebo, Taking Charge/alcohol, or Taking Charge/placebo. After completing their assigned program, participants complete a laboratory session in which they consume an alcohol (target BrAC: .08%) or placebo beverage and then engage in the Bystanders in Sexual Assault Virtual Environments (BSAVE), a virtual house party comprising situations in which participants have opportunities to intervene. Self-reported bystander behavior across alcohol and non-alcohol contexts is also assessed at 6- and 12-months post-intervention. Secondary outcomes include attitudes toward, outcome expectancies for, and self-efficacy for bystander behavior via self-report. DISCUSSION: RealConsent2.0 is the first web-based intervention for young men that encourages and teaches skills to engage in prosocial bystander behavior to prevent SV while intoxicated. This is also the first study to assess the proximal effect of alcohol on bystander behavior via a VR environment. TRIAL REGISTRATION: Clinicaltrials.gov, NCT04912492. Registered on 05 February 2021.
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Intervenção Baseada em Internet , Delitos Sexuais , Masculino , Adulto Jovem , Humanos , Delitos Sexuais/prevenção & controle , Etanol , Atitude , Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/prevenção & controle , Universidades , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
Sensory-specific satiety (SSS) could negatively affect pigs' feed intake, even when diets satisfy their nutritional requirements. We evaluated the short-term effects of SSS on feed intake and palatability. Thirty-two nursery pigs (tested in pairs) were exposed to short-term feeding trials for 6 days. In Trial 1, animals received for 90 min over three consecutive days three feeders: with different flavours (VAR); the same flavour (MON); or a mixture of the three flavours (MIX) in a 3 × 3 Latin square design. In Trial 2, with the same animals and different flavours, the three feeders were delivered successively (1 feeder every 30 min). In Trial 1, there was a day-by-diet interaction (F 4,36 = 2.98; p = 0.032), where the VAR diet was least consumed on the first day but most consumed subsequently. In Trial 2 a triple interaction between diet, day and delivery order modified pig's intake (F 12,15 = 3.33; p = 0.015), and consumption patterns (F 12,15 = 3.52; p = 0.012); where VAR diet presented the highest values in the last delivery order on the third experimental day. Flavour variety may decrease the effect of SSS, increasing feed intake and hedonic value in nursery pigs when there was a previous experience with those flavours.
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Background: To achieve universal care and overcome existing barriers, the most effective strategy is to devise an action plan that incorporates palliative care into primary health care (PHC), as recommended by the World Health Organization's (WHO) Astana Declaration. In Colombia, a country with an upper-middle-income status, about 128,000 individuals experience severe health-related suffering (SHS) that necessitates palliative care. Although the country's healthcare system has made steady strides in the integration and development of palliative care, there is still no national plan in place for palliative care. Objective: Build up Colombia's palliative care plan through stakeholder consensus. Method: Based on the participatory action research method and the multi-stakeholder platforms model, this study convened 142 stakeholders from different levels of the health system (patient representatives, journalists, health professionals, government entities, insurance companies, universities, and drug regulatory authorities). Results: The national plan aims to achieve its objectives through a series of strategic actions. These include integrating and diversifying palliative care services, improving access to opioids, increasing palliative care education, promoting community-based palliative care programs, securing funding, and implementing a regulatory framework for palliative care by public policymakers. Conclusions: The national palliative care is an alliance that aims to reduce palliative care inequity in Colombia by 2026 by empowering stakeholders nationwide to collaborate around specific goals and objectives.
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Oral dosage forms with adjustable drug release profiles were prepared using progesterone (PGR) as a poorly-soluble model drug. The dosage forms were made as stack assemblies of functional modules. The modules were made as PGR-carrying HPMC films cut into wafer-like circular pieces. Two types of modules were used in the study; one exhibited comparatively fast drug release and the other slow release. The fast vs. slow release of each type of film utilized resulted from the grade of HPMC used in each case. Drug loading in the assembly was controlled through the total number of modules. By adjusting the proportions of the two types of modules, it is possible to fine-tune the drug release rate of the multi-layer assemblies to a wide range of profiles, bracketed between a high and low end, corresponding to the inherently fastest or slowest release obtainable with the specific materials and procedures employed. This procedure is suitable for adjusting the spring-and-parachute parameters for enhancing/optimizing the bioavailability of poorly-soluble drugs, and for developing patient-centric formulations.
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BACKGROUND: Sexual violence (SV) incidence among college women has been invariant for the past 20 years. Innovative prevention strategies that are low resource and technology driven but demonstrate efficacy are greatly needed. OBJECTIVE: The aim of this study was to determine the efficacy of a novel theoretically driven internet-based intervention for first-year college students who identify as women (RealConsent) in reducing their risk of exposure to SV and alcohol misuse as well as increasing alcohol protective and bystander behaviors. METHODS: This randomized controlled trial involved first-year college students who identified as women (n=881) attending 1 of 3 universities in the southeastern United States. Participants aged 18 to 20 years were randomized to RealConsent (444/881, 50.4%) or to an attention-matched placebo control (437/881, 49.6%). RealConsent is fully automated and consists of four 45-minute modules that incorporate entertainment-education media and proven behavior change techniques. The primary outcome was exposure to SV; the secondary outcomes were alcohol protective behaviors, dating risk behaviors, alcohol misuse, and bystander behavior. Study outcomes were assessed at baseline and 6-month follow-up. RESULTS: Among participants with some exposure to SV, those in the RealConsent group experienced less exposure to SV than the placebo group (adjusted incidence rate ratio 0.48, 95% CI 0.33-0.69; P=.002). Furthermore, participants in the RealConsent group engaged in more alcohol protective behaviors (adjusted odds ratio 1.17, 95% CI 0.12-2.22; P=.03) and were less likely to binge drink (adjusted incidence rate ratio 0.81, 95% CI 0.67-0.97; P=.003). Finally, participants in the RealConsent group who had 100% dosage were more likely to engage in bystander behavior than those with <100% dosage plus placebo group (adjusted odds ratio 1.72, 95% CI 1.17-2.55; P=.006). CONCLUSIONS: A comprehensive exposure to SV, alcohol use, and bystander educational program was successful in decreasing the occurrence of exposure to SV among those most at risk and in increasing alcohol protective behaviors. Because of its web-based and mobile technologies, RealConsent can be easily disseminated and holds potential for reducing campus SV. TRIAL REGISTRATION: ClinicalTrials.gov NCT03726437; https://clinicaltrials.gov/ct2/show/NCT03726437.
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Alcoolismo , Delitos Sexuais , Humanos , Feminino , Universidades , Delitos Sexuais/prevenção & controle , Terapia Comportamental , InternetRESUMO
Purpose: Tobacco use is prevalent among sexual and gender minorities (SGM), yet few studies have examined the specific drivers of tobacco use among trans women. The purpose of this study is to examine the impact of proximal, distal, and structural stressors associated with tobacco use among trans women. Methods: This study is based on a cross-sectional sample of trans women (n=162) living in Chicago and Atlanta. Analyses were conducted to examine the association between stressors, protective factors, and tobacco use using a structural equation modeling framework. Proximal stressors (transgender roles scale, transgender congruence scale, internalized stigma, and internalized moral acceptability) were operationalized as a higher order latent factor, while distal stressors were operationalized as observed variables (discrimination, intimate partner violence, sex work, rape, child sexual abuse, HIV, and violence). Protective factors included social support, trans-related family support, and trans-related peer support. All analyses adjusted for sociodemographic variables (age, race/ethnicity, education, homelessness and health insurance). Results: The prevalence of smoking among trans women in this study was 42.9%. In the final model, homelessness (odds ratio [OR]: 3.78; 95% confidence interval [CI]: 1.97, 7.25), intimate partner violence (OR: 2.14; 95% CI: 1.07, 4.28), and commercial sex work (OR: 2.22; 95% CI: 1.09, 4.56) were all associated with tobacco use. There was no association between proximal stressors and tobacco use. Conclusion: Among trans women, tobacco use prevalence was high. Tobacco use was associated with homelessness, intimate partner violence, and commercial sex work. Targeted tobacco cessation programs should account for the co-occurring stressors that trans women face.
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The aim of this study was to gain insight into the perceptions of pig farm and abattoir workers as well as lay citizens regarding (1) sentience and (2) positive (intelligent and friendly) and negative (gluttonous, stubborn and dirty) attributes of pigs. We also aimed to investigate the (3) knowledge and perceptions of pig farm and abattoir workers on tail lesion, ear lesion and lameness in pigs and (4) the opinion of lay citizens regarding the likelihood of tail lesions, ear lesions, and lameness causing suffering in pigs and affecting meat quality. Chilean pig farm workers (n = 116), pig abattoir workers (n = 95), and lay citizens (n = 708) were invited on farm, at the abattoir and in public places, respectively, to participate in a survey. Answers were indicated using a 5-point Likert scale (0 = totally disagree; 4 = totally agree). Data were analysed using generalized linear models, including recruitment place and socio-demographic data as predictor variables. Female and lay citizens attributed pigs a higher capacity to experience feelings than male participants and pig farm and abattoir workers (p < 0.05). Lay citizens and workers recruited on farm described pigs as being more intelligent and friendly than those workers recruited at the abattoir (p < 0.001); recruitment place and sex were not associated with participants' perception regarding negative attributes of pigs (p > 0.05). Most lay citizens considered that tail lesions, ear lesions and lameness are likely to cause suffering in pigs and older participants had higher odds of agreeing that tail and ear lesions are likely to affect meat quality (p < 0.05). Finally, the risk factors for tail lesion, ear lesions and lameness pointed out by pig farm and abattoir workers is in line with what has been suggested by experts. Our findings contribute to understand the perception and values of all stakeholders regarding animal welfare, as it is crucial to improve the sustainability of animal production systems.
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Matadouros , Cauda , Feminino , Masculino , Suínos , Animais , Cauda/patologia , Fazendas , Coxeadura Animal/patologia , Marcha , Bem-Estar do AnimalRESUMO
This study aimed to investigate the associations between severe ear, tail, and skin lesions, hernias, bursitis, and rectal prolapses and meat inspection finding in slaughter pigs, including carcass weight and financial implications associated with carcass condemnations at batch level. Data were collected from 13,296 pigs from 116 batches from a single abattoir. Spearman's correlation coefficients were calculated to analyze the degree of association between the prevalence of welfare issues and condemnation findings. The association between batch-level results of carcass weight, batch size, and the prevalence of welfare issues was analyzed using generalized linear mixed models. The prevalence of tail lesions was significantly associated with both entire (r = 0.224; p = 0.0432) and partial (r = 0.276; p = 0.0120) carcass condemnation. Batches with pigs affected by more than one welfare issue were 9.9 kg lighter than those without welfare issues (p < 0.05), which was equivalent to a potential loss of 11.28 per pig. Our findings indicate that ante-mortem inspection could be useful to predict post-mortem findings at batch level and that welfare issues in pigs represent a financial loss to producers, as they are paid on a per kg basis and have tight margins.
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Matadouros , Bem-Estar do Animal , Suínos , Animais , Carne , Cauda , PrevalênciaRESUMO
The chemical diversity of sphingolipids in plants allows the assignment of specific roles to special molecular species. These roles include NaCl receptors for glycosylinositolphosphoceramides or second messengers for long-chain bases (LCBs), free or in their acylated forms. Such signaling function has been associated with plant immunity, with an apparent connection to mitogen-activated protein kinase 6 (MPK6) and reactive oxygen species (ROS). This work used in planta assays with mutants and fumonisin B1 (FB1) to generate varying levels of endogenous sphingolipids. This was complemented with in planta pathogenicity tests using virulent and avirulent Pseudomonas syringae strains. Our results indicate that the surge of specific free LCBs and ceramides induced by FB1 or an avirulent strain trigger a biphasic ROS production. The first transient phase is partially produced by NADPH oxidase, and the second is sustained and is related to programmed cell death. MPK6 acts downstream of LCB buildup and upstream of late ROS and is required to selectively inhibit the growth of the avirulent but not the virulent strain. Altogether, these results provide evidence that a LCB- MPK6- ROS signaling pathway contributes differentially to the two forms of immunity described in plants, upregulating the defense scheme of a non-compatible interaction.
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Proteínas de Arabidopsis , Arabidopsis , Arabidopsis/metabolismo , Proteínas de Arabidopsis/genética , Espécies Reativas de Oxigênio/metabolismo , Morte Celular , Transdução de Sinais , Esfingolipídeos/metabolismo , Regulação da Expressão Gênica de PlantasRESUMO
Background: Infections are common in patients with advanced illnesses for whom the intravenous or oral route is not possible. The subcutaneous administration of antibiotics is a promising alternative, but there is not enough theoretical support for its use. This study aims to explore the effectiveness and safety of subcutaneous antibiotic therapy in the context of palliative care in elderly patients. Methods: A systematic review was conducted using PubMed and Embase, without time or language limits. Seven articles were selected on the effectiveness of subcutaneous antibiotic therapy in adult patients with chronic progressive diseases. The quality of the articles was assessed with the Newcastle Ottawa Scale and relevant data was extracted using a selection capture file. Results: Seven quasi-experimental studies evaluated 865 elderly patients with advanced diseases, comorbidities, and infections (ie, urinary tract, respiratory system, and bone joint) who received subcutaneous antibiotic therapy (ie, Ceftriaxone, Ertapenem, and Teicoplanin). The pooled success rate of subcutaneous antibiotics for the 7 studies was 71%, the therapy failure rate was 22%, its withdrawal mean was 8%, and the mean mortality rate was 7%. The studies were of low quality and were heterogeneous in the types of infections, types of antibiotics, time of follow-up, and outcomes assessed. Conclusions: Pilot studies have found a limited number of antibiotics that can be safely used to treat specific infections. Nevertheless, the data isn´t robust enough to recommend their use.